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Cushion for patient interface

  • US 8,613,281 B2
  • Filed: 11/29/2012
  • Issued: 12/24/2013
  • Est. Priority Date: 01/12/2005
  • Status: Active Grant
First Claim
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1. A method of structuring a series of full-face cushions for patient interfaces that deliver breathable gas to patients, each of the full-face cushions including a nasal bridge region, cheek regions and a chin region, each of the full-face cushions defining, at least in part, a breathing cavity, the method comprising:

  • structuring a first full-face cushion, the first full-face cushion comprising a first membrane including a first nasal bridge region, first cheek regions and a first chin region structured to form a first seal to contact a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the first membrane having an inner edge that defines a first triangular-shaped aperture to receive the patient'"'"'s nose and mouth, the first triangular-shaped aperture including a lower portion having a first mouth width;

    structuring a second full-face cushion, the second full-face cushion comprising a second membrane including a second nasal bridge region, second cheek regions and a second chin region structured to form a second seal to contact a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the second membrane having an inner edge that defines a second triangular-shaped aperture to receive the patient'"'"'s nose and mouth, the second triangular-shaped aperture including a lower portion having a second mouth width;

    structuring a third full-face cushion, the third full-face cushion comprising a third membrane including a third nasal bridge region, third cheek regions and a third chin region structured to form a third seal to contact a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the third membrane having an inner edge that defines a third triangular-shaped aperture to receive the patient'"'"'s nose and mouth, the third triangular-shaped aperture including a lower portion having a third mouth width; and

    structuring a fourth full-face cushion, the fourth full-face cushion comprising a fourth membrane including a fourth nasal bridge region, fourth cheek regions and a fourth chin region structured to form a fourth seal to contact a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the fourth membrane having an inner edge that defines a fourth triangular-shaped aperture to receive the patient'"'"'s nose and mouth, the fourth triangular-shaped aperture including a lower portion having a fourth mouth width,wherein the first, second, third and fourth triangular-shaped apertures are structured such that, in a front view, each of the first, second, third and fourth triangular-shaped apertures has a different height, and the first, second, third and fourth mouth widths are the same, andwherein one of the first full-face cushion, the second full-face cushion, the third full-face cushion and the fourth full-face cushion is a large size full-face cushion, and wherein each of the first, second, third and fourth full-face cushions is of a different size.

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